Shearing-clippers



(No Model.)

E. A. COCHRAN. SHBABING GLIPPBRS.

No. 508,165. Patented Nov. '7, 1893.

NVENTOR ATTORNEY y UNITED STATES PAT-ENT OFFICE.

EDWARD A. COCHRAN, OF BROOKLYN, NEW YORK.

SHEARING- CLIPPERS.l

SPECIFICATION forming part of Letters Patent No. 508,165, dated November 7, 1893.

Application filed January 11, 1893. Serial No. 4581014- (No model.)

To all whom 25 may concern:

Be it known that I, EDWARD A. COCHRAN, a citizen of the United States, residing at Brooklyn, in the county of Kings and State ot' New York, have invented certain new and useful Improvements in Shearing-Clippers, of which the following is a specification.

This invention is applicable to clippers used in shearing or clipping human or animal hair, or wool.

The invention relates to clippers, wherein the cutter-plate is reciprocated from one extremity of its stroke to the other, and back again, by each single motion of the movable handle, as described in my separate patent application, tiled October l0, 1892, Serial No.

448,309; the object of thus doubly reciproeating the cutter-plate at each stroke of the movable handle being to multiply the cutting capacity of the tool without requiring any more rapid or increased range of movement of the hands in operating the clipper lthan heretofore.

y in the appended claim its novel characteristics.

Referring, to the accompanying drawings: Figure 1, is an elevation `of the instrument with the cap-plate partly removed in section onthe line :zz- 03, Fig. 2. Fig. 2, is a side view taken partly in section on the line y-y, Fig. 1. Fig. 3, is a transverse section taken on a line z-z, Fig. 1. A

The housing 3, is made integral with the stationary handle-t, and an opening 5, is provided at the back of the housing 3, for the reception of the movable handle 6, which is pivoted on the stud 7, fastened in the comb-plate 1. The cutter-plate 2, is reciprocated back and forth to such an extent that its teeth 9, pass two interspaces of the teeth 10, upon the comb-plate 1, at each direction of motion, and

the teeth 9, 10, shear together in the usual manner. The housing 3 is provided with projections 11, that bear against the cutter-'plate 2,with elastic pressure, exerted through the agency of the clamping stud l2, clamping nut 13, and warped spring Washer 14, interposed between said clamping nut and the top surface of the housing 3. The stud 12, is provided with a round head 15, for holding it in the comb-plate 1, and the iianges of the head 15, are tiled ott, orattened at opposite sides, as seen in Fig. 2, and as indicated by dotted lines in Fig. 1, so as to prevent the said stud from turning in the plate l, when thenut13,'is adjusted.

The cutter-plate 2, is provided with slots 20,

vwhereby it is guided upon the anti-friction rollers 21, mounted on the screws 22, secured into the housing 3, and the heads of said screws project into the comb-plate 1, and serve to prevent its lateral displacement.

'A suitable slot 23,is provided in the cutterplate 2, to allow the free passage of the latter about the stud 12.

The movable handle 6, is provided with a projecting arm 25, to the extremity of which the mechanism for doubly reciprocating the cutter 2, at each motion of said handle 6, is connected.

The reciprocating mechanism consists in the toggle bars 30, 31, which are pivoted together at their adjoining ends, and its outer end, the bar 3l, is pivoted at 33, to the cutter` plate 2, while the bar 30, is pivoted at 34, to the housing 3,-as more clearly seen in Fig. 3. The outer extremity 30', of the toggle bar 30, receives a link 36, pivoted thereto at 35, and connected with the extremity 37, of the arm 25, pertaining to the movable handle 6.

When the movable handle 6, is moved to its position nearest the stationary handle 4E, as

illustrated in Fig. 1, the toggle bars 30,3l,oc cupy oneextreme angular position, so that the cutter-plate is moved to the extreme in one direction of its stroke, and when the movable handle 6, is moved to an intermediate position, the toggle bars,30,3l,are in a straight line, bringing the cutter-plate 2, to the extreme in the other direction of its stroke, and when the movable handle 6, has continued its motion to that position most distant from the stationary handle et, the toggle bars 30, 31, occupy the opposite extreme angle, as shown in dotted lines in Fig. 1, returning the cutter- IOO plate 2, to its first position, thereby perliorming two motions for' one motion `ot' the lrandle 6. When the handle 6, is returned from the position indicated in dotted lines to that indicated in full lines in Fig. 1, the double motion of the cutter 2, is repeated Vin a similar manner, thus causing the shearing operations to be more rapid without increasing the rapidity or range of movement given tothe*han-` dles of the implement.

The present invention is not limited to its application herein illustrated to ahrse clip-L what I claim, and desire to secure by Letters Patent-is- In animal shears, the combination of a comb plate, a movable cutter plate thereon, means for holding the tool, a pivoted handle having -a projecting arm movable in a direction at substantially right angles to the Inovement of the cutter plate, toggle bars pivotally .jointed together at their adjacent ends, the

outer end .of one of said bars being pivoted to the cutter plate, the other of said bars being lpivoted between its endsito the frame of the t machine, and alink extending from the outer 4"eztremity of said Iast'named bar to the projecting arm of the pivoted handle.

In testimonygwlrereof 'l h-ave'herennto set 'mylhand this Q fh'day cffJannarISlgQ.

p EDWARD A. (OCHRAN. 'lVitnesses:

HQE-PARKER, HENRY'KLIN. 

